Package org.camunda.bpm.engine.impl.migration.validation.instruction

Class GatewayMappingValidator

java.lang.Object

org.camunda.bpm.engine.impl.migration.validation.instruction.GatewayMappingValidator

All Implemented Interfaces:

MigrationInstructionValidator

public class GatewayMappingValidator
extends java.lang.Object
implements MigrationInstructionValidator

For synchronizing gateways (inclusive; parallel), the situation in which more tokens end up at the target gateway than there are incoming sequence flows must be avoided. Else, the migrated process instance may appear as broken to users since the migration logic cannot trigger these gateways immediately.

Such situations can be avoided by enforcing that

• the target gateway has at least the same number of incoming sequence flows
• the target gateway's flow scope is not removed
• there is not more than one instruction that maps to the target gateway

Author:

Thorben Lindhauer

Constructor Summary

Constructors

Constructor	Description
GatewayMappingValidator()

Method Summary

Modifier and Type	Method	Description
protected boolean	isWaitStateGateway(ActivityImpl activity)
void	validate(ValidatingMigrationInstruction instruction, ValidatingMigrationInstructions instructions, MigrationInstructionValidationReportImpl report)	Check that a migration instruction is valid for a migration plan.
protected void	validateIncomingSequenceFlows(ValidatingMigrationInstruction instruction, ValidatingMigrationInstructions instructions, MigrationInstructionValidationReportImpl report)
protected void	validateParentScopeMigrates(ValidatingMigrationInstruction instruction, ValidatingMigrationInstructions instructions, MigrationInstructionValidationReportImpl report)
protected void	validateSingleInstruction(ValidatingMigrationInstruction instruction, ValidatingMigrationInstructions instructions, MigrationInstructionValidationReportImpl report)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

GatewayMappingValidator

public GatewayMappingValidator()

Method Detail

validate

public void validate(ValidatingMigrationInstruction instruction,
                     ValidatingMigrationInstructions instructions,
                     MigrationInstructionValidationReportImpl report)

Description copied from interface: MigrationInstructionValidator

Check that a migration instruction is valid for a migration plan. If it is invalid a failure has to added to the validation report.

Specified by:

validate in interface MigrationInstructionValidator

Parameters:

instruction - the instruction to validate

instructions - the complete migration plan to validate

report - the validation report

validateIncomingSequenceFlows

protected void validateIncomingSequenceFlows(ValidatingMigrationInstruction instruction,
                                             ValidatingMigrationInstructions instructions,
                                             MigrationInstructionValidationReportImpl report)

validateParentScopeMigrates

protected void validateParentScopeMigrates(ValidatingMigrationInstruction instruction,
                                           ValidatingMigrationInstructions instructions,
                                           MigrationInstructionValidationReportImpl report)

validateSingleInstruction

protected void validateSingleInstruction(ValidatingMigrationInstruction instruction,
                                         ValidatingMigrationInstructions instructions,
                                         MigrationInstructionValidationReportImpl report)

isWaitStateGateway

protected boolean isWaitStateGateway(ActivityImpl activity)